hugs to you, honeytemple! it sounds like you are losing weight not just from your body, but from your life. as soon as you start healing from this destructive relationship you were in, you can really appreciate the fact that your partner is no longer there bringing you and your kids pain. he needs to sort his own life out without messing up yours any longer. your kids deserve better and so do you. i'm glad that you realise this and have taken steps.
I have a friend who is always trying to sabotage me also, and I have been avoiding her. She has gotten annoyed about the fact that I never seem to want to do anything lately. But that's ok, she can just deal with it. We have enough to contend with on this diet, within our own minds, without outside influences willing us to fail.